Closure



C. A.'ZAROB$KY CLOSURE June 10, 1930.

Filed March 2; 1928 Attorneys Patented June 10, 1930 g shown, forpurposes of illustration, one

' d of the locking member 17 to thus hold the 'locking member 17assembled with the outer shell 16' with thebase 22 positioned withinNITED STATES OFFICE CHARLES A. ZAROBSKY, OF CLEVELAND, OHIO, ASSIGNOR TOTHE SIMPLEX GAP COH- PANY OF CLEVELAND, OHIO; A CORPORATION OFF-OHIOCLOSURE My invention relates to closures, and particularly to'closuressecured in position by bayonet joint'means, and the principal object ofmy invention is to provide a new and improved closure of this type. Inthe drawings accompanying this specification and forming a part of thisapplication I have form which my invention may assume, an

in these drawings:

Figure 1 is a vertical section through this illustrative embodiment ofmy invention taken at right angles to the direction of extent of thelocking fingers,"

Figure 2 is a vertical section taken longitudinally of the lockingfingers, and. therefore at right angles to-Figure 1,

Figure 3 is a view similar to Figure-2, but showing the closureassembled on the tube which is to be closed, 1

Figure 4 is a bottom plan view of the closure,

Figure 5 a while Figure 6 isa rectified section taken on the *line 66 ofFigure 4 and showing particularly the contour of the cam section of .alocking finger. i

The closure 11 shown herein is constructed for application to a tube ,12having its cylindrical wall 13 provided with a pair ofdiametrically-opposed struck-out inwardly-projectmg lugs 15, and theclosure 11 prgjecting in opposite directions from the base section 22,and closing and locking'cam sections 26 provided at the ends of thefingers 23 in position to engage beneath the lugs 15 on the tube 12 and.provided with slightly inclined sections 27 adapted in cooperation withthe lugs 15 to draw the closure 11 into position'firmly seated againstthe open end of the tube 12, and-with termiis a top plan view of thetube,

nal portions 28 formed as recesses for receiving the lugs 15 toreleasably hold the closure 11 in position so assembled on the tube 12;while the locking member 17 is secured assembled with the outer shell 16by a single rivet 25 passing through alined apertures 20 and 21 in theboss 19, of the top section 18 of the outer shell 16 and the basesection 22 ,the boss 19 holding the locking member 17 against rotationrelative to the outer shell 16.

In order to provide the yield necessary in assembling the closure 11 onthe tube 12 the fingers 23, and in fact the entirelocking the'tube 12the closure 11 is'provided with a sealing gasket 14 carried below themargin of the circulartop section 18 of the outer shell 16 in positionto engage the edge of the cylindrical wall- 13 of the tube 12.

From the above description it will of course be obvious to those skilledin the art that the closure 11 is applied to the tube 12' bylongitudinal, movement to assemble the "member 17, are formed ofresilient material,

vclosure 11 with itsskirt 2 4.overhangingthe' tub lef1 2, and thattheclosure 11 is secured to the tube 12' by rotation of the closure 11relative to the tube 12 to bring the cam surfaces 26 of the fingers23beneath the lugs 15 projecting from the tube 12, first to drawtheclosure 11 tightly against the tube 12 by the operation of theinclined sections 27 of;

the fingers 23, and then to hold the closure 11 so assembled on the tube12' by the reception of the lugs 1 5 within the re.cesses\28 formed at,the terminal end of the cam sections 26'.

Also from, a consideration of the above disclosure it will be obvious tothose s'ln'lled in the art that I have provided a closure which can bemade at a low cost,and which will, operate ifidefinitely with entiresatisfaction, and-under these circumstances it will of course be obviousthat the embodiment of my invention herein shown an describedaccomplishes at least the principal object of my invention. At the sametimev it also will be obvious that the particular embodiment of myinvention herein shown and described embodies advantages otherthan thoseparticularly pointed out or suggested herein, and that this particularem bodiment of my invention may be variously changed and modifiedwithout departing from the spirit of my invention or sacrificing theadvantages thereof, and it therefore will be understood that thedisclosure herein is illustrative only, and that my invention is notlimited thereto.

-I claim: a

1. For use with a tube provided with a plurality of partial bayonetjoints, a closure comprising: a cap member having a top section; lockingmeans having a plurality of fingers provided with partial bayonet jointscomplementary to and cooperating with said partial bayonet joints ofsaid tube; cooperating irregularities on said top section and sailocking means preventing relative rotation between said cap member andsaid locking means when said cap member and said locking means areassembled; and securing means securin said locking means assembled withsai cap member. j v.

2. Foruse with a tube provided with a plurality of partial bayonetjoints, a closure comprising: a cap member having a top tion; a 'slnglelocking member having section, a single locking member having aplurality of ngers provided with partial bayonet joints complementary toand 00-- section; locking means having a plurality of fingers providedwith partial bayonet joints complementary to and cooperating with saidpartial bayonet joints of said tube; cooperating irregularities on saidtop section and said locking means preventing, relative rotation betweensaid cap member and said locking means when said cap member and saidlocking. means are assembled; and a single securing means securing saidlocking means to said cap member centrally of said top section. p

4. For use with a tube provided with a plurality of partial bayonetjoints, aclosure comprising: a cap member having a top seea plurality offingers provided with partial bayonet joints complementary to and. co-

member and said locking member are operating with said partial bayonetjoints 0 said tube; cooperating irregularities on saidto section andsaid locking member preventing relative rotation between said cap memberand said'locking member when said cap member and said locking member areassembled; and a single securing means securing said locking member tosaid cap member centrally of said top section.

In testimony whereof I hereunto affix my signature.

CHAS. A. ZAROBSKY.

